hi, my stereo has been unused for about two years, and i uncovered it the other day and started playing music from my phone on it via a two port aux cable about three weeks ago. i got home today, and it is making a very odd clicking noise. also, the light to show that it is on standby is not lit up (it should be as it is plugged in to the mains and as i left it earlier today). i think the problem is that the power is not getting to the actual main tower. is this repairable? and if so how?